I picked my son up and he chose to go to feed the ducks in the park. We walked towards the ducks and declared he needed a wee. The boathouse was closed. We walked to the museum and that too was closed. I took him to a secluded corner and he would not do it outside. So I rushed in the van to the nearest Mcdonalds but he had already done it. I said calmly that it didn't matter as his bag had a change of clothes in it. So he got changed and I bought him a happy meal and a doughnut. He ate the chips only. I didn't really have time to take him back to my mums so I set off somewhere local and he fell asleep even with me prodding him. I tried to awaken him in a pub car park near his mums but he was in a mood. I rang up to drop him off early and that was ok. 
I then took my step daughter to my mums where my niece had been also brought. They had two hours together and mum was also able to see them both. Then I returned my step daughter home. I spent an hour and a half writing a summary of my night at Bolling Hall and when I tried to submit it, it disappeared and I had lost it. I went to bed disappointed but not angry. Shit happens. Learn from it.